A study on the behaviour of M-type barium hexagonal ferrite based microwave absorbing paints

[摘要] This paper deals with development of single- and double-layer microwave absorbing paints using Mn-substituted barium hexagonal ferrite. The comparative studies of both theoretical and experimental results at Ku band have been reported. It has been found that the single layer absorbing paint exhibits peak absorption of 12.3 dB at 17.4 GHz for a thickness of 1.12 mm. Double layer absorbing paint with each layer of different composition of ferrite gives a broad band characteristics, but at the cost of lowered absorption.

[学科分类] 材料工程

[关键词] Hexagonal ferrite;radar cross-section;microwave acsorbing paint.